Indicating mechanism.



P. EBERT. XNDIGATING MECHANISM.

APPLICATION FILED 001227, 1910. 1,128,960. Patented Feb. 16, 1915.

3 $HBETS SHIIET 1.

F. EBERT. INDIOATING MECHANISM.

APPLICATION FILED OCT. 27. 1910' 1,1 28,960. Patented Feb. 1b, 1915.

P. EBERT.

INDICATING MECHANISM.

APPLICATION TILED OUT. 2'7, 1910, 1,123,9 0, Patented Feb.16,1915.

3 BKEETB"SHBET 3.

' UNITED STATES PATENT OFFICE.

FRIEDRICH EBERT, OF STU'ITGART, GERMANY, ASSIGNOR TO THE FIRM OF UNION SPECIAL-MASCHINENFABRIK G. .M. B. 11., 0F STUTTGAR'I, GERMANY.

IN DICATING MECHANISM.

' Specification of Letters Patent.

Patented Feb. 16, 1915.

To all whom it may concern:

Be it known that I, FRIEDRICH Emsn'r, engineer, a citizen of the German Empire. residing at Stuttgart, in the Kingdom of l/Vurttemberg, Empire of Germany, have, invented certain new and useful Improvements in and Relating to Indicating Mechaiiism; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such as will enable others: skilled in the art to which it appertains to make and use the same.

This invention relates to an improved indicating mechanism for moneyvchanging and issuing machines. In the apparatus of this kind hitherto employed stepped frames rocking on their axes are used. the separatesteps of which according to their position as. regards height determine the amount of the rocking movement and therewith also the figure value, and are moved by spring action against the key bar which is at that time adjusted. These said stepped frames in consequence of their weight necessitate a very strong spring for operating them, which imparts to them by reason of their considerable weight, a correspondingly great impetus, whereby by repeatedly striking the key cars they of course damage the places encountered and thereby alter the position of the working parts of the 1 apparatus, which of course has an unfavoiable influence on the working of the entire apparatus.

This invention has for its object to remove this disadvantage and this is attained by the key bars themselves being so formed in place of the ordinary stepped frames cut in a cylinder casing. that their ends lie stepwise side-by side and they are locked in their lowest position by an easily rocking bar. The entire construction of the apparatus is substantially simplified and cheapened by this arrangement.

The invention will now be more particular'ly described in connection with some forms of construction shown as an example in the accompanying drawings.

Figures 1 to 3 show a form of construction of the improved machine partially in section inside view, plan view and in another position of the parts; While Fig. 4 is a side view partially in section of another form of construction. Figs. 5, 6, 7 and 8 represent detail views illustrating the difl'ermocking segment lever.

ent positions of the parts in the cooperative gnsovements of the slide jaw 23 and the nose In this invention the key bars 1 (Figs. 1 to 3) are prolonged at one end in such a way that they lie side by side like steps. he prolongations 2 of the key bars 1 ha e projections 3 against which when the bar 1 is depressed a rocking contact bar 4 rests. A

bar 4 is provided for each series of keys,-

that is to say both for the tens as well as for the units of the mark and pfennig divisions (where the machine is arranged for German coinage). All the bars 4 turn loosely on a spindle 5, and are connected by levers 6 with segments 7. The segments 7 are in direct connection by means of toothed wheels and 9 with the shaft 10 for moving the inspection wheel 11. Each of the key bars 1 also has a prolongation 12, which on thcdepression of the keys takes with it a dra'wl ar 13 which engages on one arm 14 of a pawl 15 and thereby lifts this out of a notch 16 in the with them also the bars 4 are acted on by a spring 17.

On the operating shaft 18 a lever 19 is arranged which carries a rack bar 20 which is pivotally mounted at 21 and is brought by the intermediary of a spring 22 by a slide aw 23 into and out of engagement. with a toothed segment 24 mounted on the shaft 5. The toothed segment 24 and 'also a recoil frame 25 and crossbar 38 of the segment lever 6 are in their usual position pressed by a spring 26 against the stop 27.

The rack bar 20 is provided at its free end with a laterally extending nose 28 which actsin conjunction with the sliding jaw 23 which holds the bar out of engagement with the segment 24. i 1

In the form of construction shown in Flg. 4, the key bars 1 are provided at both ends with prolongations 3, both sets of which lie stepwise side by side. In this arrangement, which is intended for the case in which several figures are provided on each key, a similar arrangement like the one hereinbefore described is adopted at the other end of the bars, levers 30 resting on a shaft '29, which levers carry a stop bar The levers 6 and 31 corresponding to the bar 4, While the 35 of the lever 30. In this case the contact bars 4 and .31 are connected with one another by a bar 36, so that when the keys are depressed they are compulsorily moved against one another.

The improved machine is operated as folllowsz-On the depression of a key and key bar 1, a segment lever 6, which is loosely mounted on the shaft 5, is released, the nose of the key bar prolongation 12 commencing to take the drawbar 13 with it to about half the extent of the movement of the bar 1 and thereby lifting the pawl 15 out of its nofch l6, whereupon the spring 17 comes into ac tion, which draws the lever 6' so far that the bar 4 bears against the projection 3 of the key which is at the movement depressed, whereupon the bar 1 is locked in this position by the bar 4. Now at the same time the segment 7 is turned and this transmits its mo ement through the toothed wheels 8 and 9 to the inspection wheels 11, and the proportions of transfer are so selected that the movement of the bar 4 transmitted to the number wheels 11 always exactly corresponds to the desired figure value. and the indicated number visible in the ordinary inspection hole is thereby simultaneously transmitted b the shaft 10 to the indicating mechanism. Whenthe' amount in question has been indicated in the manner hereinbefore described. the hand lever 37 is moved to the left. so that the shaft 18 rotates with it, the lever 19 thereby draws the rackbar 20 back, while the nose 28 slips away over the projection 23 without the rackbar coming into engagement with the segment 24. By this means'the point at. which the spring "2-2 acts is displaced to the left, so that this spring in the next succeeding movement to the right of the lever 37 brings the rack bar 20 into engagement with the segment 24, and. as the nose 28 slips through under the projection 23, this causes a rotation of the segment 24 and the shaft 5 together with the crossbar 3S firmly connected with it, which then rests against the segment 7, and moves this segment together with the con, tactbar 4 back into the In this movement the spring'Qti is stretched, which as soon as the rack bar 20 is brought by the spring 22 out of engagement with the segment 24 draws back the lever 25 and therewith the crossbar 38 into the initial position, that is to say until it rests against its stop 27. i Q

Now as the initially depressed key is also again movedinto the initiai position by its spring afterthe release of the bar 1 by the bar 4, the operation can repeated in the same way.

As shown in Fig. 5, the spindle '5, the lever 25, the cross-bar 38, the rack 20 and the nose 28 are in normal position. In operating the lever 37 in the direction of initial position.

the arrow, the nose 28 will pass over/the slide jaw 23. {I

In Fig. 6, when the lever 37, as well as the rack 20 with the nose 28 has reached its extre left hand position, the' spring 29 has clifnged its active position with respect to the pivot point of the rack bar, and the nose 2B is about starting to snap off'frorn the slide jaw 23. In Fig. 7, the nose has passed oil from the slide jaw 23 and has become coupled with a segmental gear 24, the latter being connected with the spindle 5, and when the lever 37 returns in the direction of the arrow. the parts coupled are moved simultaneously.

In Fig,,8 the lever 37 has reached its normal position and the nose 28 is about snap- I ping off from the slide jaw 23 shortly before the uncoupling of the segmental gear '24. Therefore, the rack 20 can not yet release the segmental gear 25 which is under the pressure of a spring 26 and allow it to swing back with spindle 5, lever 25, and

rose bar 38 to normal position.

In the arrangement shown in Figs. 1- one key series of 18 keys (Fig. 2) suflices for the operation of each of the mark and pfennig divisions, as in this case the kevs from 10-90 each indicate one number which appears at the tens place, While the keys from 1-9 indicate the figures at the units place. The form of construction in Fig. 4 on the other hand is intended for appara; tus in which the separate keys carry several numbers, in which case 99 keys are necessary for each of the mark and pfennig divisions. I

I declare that what I claim is:-

1. An indicating device for moneychanging' and coin-issuing machines, compris'ng keys arranged side by side and stepwise at both ends, indicating wheels, means for oscillating said wheels, and means controlled by said stepwise arrangement at each end of the keys for limiting the movement of its respective wheel, whereby one key may indicate one or more numbers.

2. An indicating device for money-changing and coin-issuing machines. comprising stepwise arranged key bars side by side and liaving pi;ojections thereon. an indieating wheel,redouble-armed rocking lever for operating said indicating wheel, and a contact bar carried by the lever for engaging the projections on the stepwise key bars for limiting the movement of said lever.

3. An indicating device formoney-chnnging and coin-issuing machines. comprising stepwise arranged key bars side by side and having projections thereon, an indicating wheel, a double-armed rocking lever, a toothed segment carried by one end of the levecfor operating said indicating wheel, and a contact bar carried by the opposite end of the lever for engaging the projections on the stepwise key bars for limiting the movement of said lever.

4. An indicating device for money-changing and coin-issuing machines, comprising stepwise arranged key liars side side, an indicating wheel, a donhlearmed rocking lever, e toothed segment carried by one end of said lever for operating said indicating heel, means for locking: the toothed segment, an upvvan l v extending arm carried hy the key har, means operated l v said arm for releasing the locking means. and a contait l ar carried hy the opposite end of the iever for engaging the stepwise key ha! for limiting the movement of said lever.

5. .\n indicating device for money-changing and coin-issuing machines. comprising stepwise ar'anged key bars ide by side, an indicating wheel, a douhle-arn'ied rocking; iever, means carried by one end of the lever for operating the indicating wheel, a coniaet liar carried hy the opposite end of the enab e lever for engaging the stepwise key hit for limiting the moven'ient of said lever, and means for stopping said lever at the inn-merit at which the bar encounters the step of said key har.

(5. An i=-licr ing device for money-changing and coin-issuing machines, comprising stt-l) isc arrangikey bars, side by side, an indicating: wheel. a donhle-armed rocking hat-1; means carried by one end of the lever or '\l.l!lI the indicatii'ig wheel, the op- ;odw 1nd of the lever eneaging the stepit he oar for limiting, the movement of said how, means for stopping said lever at the moment the lever encounters the step i-l' aid hey har, and means for returning the lever to its initial position against the action of its sprin".

7. An indicating device for moneyehanging" and coin-issuing machines. comprising stepwise arranged key liars. side lry side. an indicating wheel. a donhle-armed rocking lever, a spring operating on said lever, means. carried hy one end of the lever for operating the indicating wheel. the opposite end of the lever engaging the stepwise key har for limiting the movement of said lever, means for :=t ')ping said l ver at; the moment the l ver encountersthe step of sa d hey bar, means for operating the lever, and means operated hy the lever-0perating mechanism for uncoupling the lever at the end of its forward stroke, wherehy the le er is returned by the action of the spring to its initial position.

8. An indicating device for money-chang ing and coin-issuing machines, comprising stepwise arranged key bars side by side and having: projections thereon, an indicating wheel, a spring-operated lever released by the depression of a key. a toothed segment connecting the lever to the indicating wheel to move the same. a contact har carried hy the lever, engaging a projecti n and thus limiting the movement of the l ver. means for uncoupling the lever at the end of its forward stroke, and a spring for returning the lever to its initial position.

In testimony whereeF I allix my signature. in presence of two witnesses.

FRIEDRICH EBERT.

Witnesses:

HnmiANN \Vm'ruticumn, Fnivxz GAUPP. 

